:root {
      --bg-primary: #f8f9fa;
      --bg-secondary: #ffffff;
      --bg-tertiary: #f8f9fa;
      --text-primary: #1e293b;
      --text-secondary: #64748b;
      --text-tertiary: #475569;
      --border-color: #e2e8f0;
      --border-light: #f1f5f9;
      --accent-blue: #2563eb;
      --accent-blue-hover: #1d4ed8;
      --accent-blue-active: #1e40af;
      --accent-red: #ef4444;
      --accent-green: #22c55e;
      --accent-green-hover: #16a34a;
      --shadow: rgba(0, 0, 0, 0.08);
      --shadow-blue: rgba(37, 99, 235, 0.3);
      --input-bg: #ffffff;
      --input-focus: rgba(37, 99, 235, 0.15);
      --btn-series-bg: #ffffff;
      --success-bg: #f0fdf4;
      --error-bg: #fef2f2;
      --pagination-hover: #f1f5f9;
    }

    /* 护眼模式 - 温润米色 */
    .theme-eye-care {
      --bg-primary: #f4f1e8;
      --bg-secondary: #fffaf3;
      --bg-tertiary: #f4f1e8;
      --text-primary: #3d3d3d;
      --text-secondary: #6b6b6b;
      --text-tertiary: #4d4d4d;
      --border-color: #d4c9b8;
      --border-light: #e8dfcf;
      --accent-blue: #7b6f5a;
      --accent-blue-hover: #8a7d65;
      --accent-blue-active: #6a5f4f;
      --accent-red: #b85450;
      --accent-green: #7b6f5a;
      --accent-green-hover: #8a7d65;
      --shadow: rgba(0, 0, 0, 0.06);
      --shadow-blue: rgba(123, 111, 90, 0.25);
      --input-bg: #fffdf8;
      --input-focus: rgba(123, 111, 90, 0.12);
      --btn-series-bg: #fffefb;
      --success-bg: #e8f0e0;
      --error-bg: #f9e6e5;
      --pagination-hover: #e8dfcf;
    }

    /* 夜晚模式 - 深色 */
    .theme-dark {
      --bg-primary: #1c1c1e;
      --bg-secondary: #2c2c2e;
      --bg-tertiary: #1c1c1e;
      --text-primary: #ffffff;
      --text-secondary: #8e8e93;
      --text-tertiary: #c7c7cc;
      --border-color: #48484a;
      --border-light: #38383a;
      --accent-blue: #0a84ff;
      --accent-blue-hover: #409cff;
      --accent-blue-active: #0066cc;
      --accent-red: #ff453a;
      --accent-green: #30d158;
      --accent-green-hover: #30d158;
      --shadow: rgba(0, 0, 0, 0.3);
      --shadow-blue: rgba(10, 132, 255, 0.4);
      --input-bg: #3a3a3c;
      --input-focus: rgba(10, 132, 255, 0.2);
      --btn-series-bg: #3a3a3c;
      --success-bg: #2d4a2d;
      --error-bg: #4a2d2d;
      --pagination-hover: #48484a;
    }

    /* 高对比度模式 */
    .theme-high-contrast {
      --bg-primary: #ffffff;
      --bg-secondary: #ffffff;
      --bg-tertiary: #f0f0f0;
      --text-primary: #000000;
      --text-secondary: #333333;
      --text-tertiary: #222222;
      --border-color: #000000;
      --border-light: #cccccc;
      --accent-blue: #0000ff;
      --accent-blue-hover: #0000cc;
      --accent-blue-active: #000099;
      --accent-red: #cc0000;
      --accent-green: #00aa00;
      --accent-green-hover: #008800;
      --shadow: rgba(0, 0, 0, 0.2);
      --shadow-blue: rgba(0, 0, 255, 0.3);
      --input-bg: #ffffff;
      --input-focus: rgba(0, 0, 255, 0.15);
      --btn-series-bg: #ffffff;
      --success-bg: #e0ffe0;
      --error-bg: #ffe0e0;
      --pagination-hover: #f0f0f0;
    }

    * {
      box-sizing: border-box;
    }

    body {
      font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'SF Pro Text', system-ui, sans-serif;
      background: var(--bg-primary);
      color: var(--text-primary);
      margin: 0;
      padding: 0;
      min-height: 100vh;
    }

    /* 页面加载时隐藏内容，避免闪烁 */
    body.loading .container {
      display: none;
    }

    /* 加载完成后显示内容，带淡入动画 */
    body.loading .container {
      opacity: 0;
      transition: opacity 0.3s ease;
    }

    body:not(.loading) .container {
      opacity: 1;
    }

    body {
      transition: background-color 0.3s ease, color 0.3s ease;
    }

    .theme-selector {
      position: fixed;
      top: 20px;
      right: 20px;
      z-index: 9999; /* 提高z-index确保在最顶层 */
      display: flex;
      gap: 8px;
      background: var(--bg-secondary);
      padding: 8px;
      border-radius: 12px;
      box-shadow: 0 4px 20px var(--shadow);
      pointer-events: auto; /* 确保可以接收点击事件 */
    }

    /* 右侧快速导航栏 */
    .quick-nav {
      position: fixed;
      top: 50%;
      left: calc(50% + 388px); /* 居中 + 容器一半宽度(340px) + 额外48px，贴近容器右边缘 */
      transform: translateY(-50%);
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .quick-nav-item {
      width: 48px;
      height: 48px;
      border-radius: 12px;
      background: var(--bg-secondary);
      border: 1px solid var(--border-color);
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      transition: all 0.3s ease;
      box-shadow: 0 2px 8px var(--shadow);
      position: relative;
    }

    .quick-nav-item:hover {
      background: var(--accent-blue);
      border-color: var(--accent-blue);
      transform: scale(1.1);
      box-shadow: 0 4px 16px var(--shadow-blue);
    }

    .quick-nav-item.active {
      background: var(--accent-blue);
      border-color: var(--accent-blue);
      color: white;
    }

    .quick-nav-item .icon {
      font-size: 20px;
      margin-bottom: 2px;
    }

    .quick-nav-item .label {
      font-size: 10px;
      font-weight: 500;
      text-align: center;
      line-height: 1;
    }

    .quick-nav-item .tooltip {
      display: none;
    }

    @media (max-width: 1024px) {
      .quick-nav {
        display: none;
      }
    }

    /* 数据管理导航栏 */
    .data-nav {
      position: fixed;
      top: calc(50% + 180px); /* 在quick-nav下面 */
      left: calc(50% + 388px); /* 与quick-nav对齐 */
      transform: translateY(-50%);
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .data-nav-item {
      width: 48px;
      height: 48px;
      border-radius: 12px;
      border: 1px solid var(--border-color);
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      transition: all 0.3s ease;
      box-shadow: 0 2px 8px var(--shadow);
      position: relative;
      background: var(--bg-secondary);
    }

    .data-nav-item:hover {
      transform: scale(1.1);
      box-shadow: 0 4px 16px var(--shadow);
    }

    .data-nav-item .icon {
      font-size: 20px;
      margin-bottom: 2px;
    }

    .data-nav-item .label {
      font-size: 10px;
      font-weight: 500;
      text-align: center;
      line-height: 1;
    }

    .data-nav-item .tooltip {
      display: none;
    }

    .data-nav-item:not(.export):not(.import):hover {
      transform: scale(1.1);
      box-shadow: 0 4px 16px var(--shadow);
    }

    /* 导出按钮样式 */
    .data-nav-item.export {
      background: var(--bg-secondary);
      border-color: var(--border-color);
      color: var(--text-primary);
    }

    .data-nav-item.export:hover {
      background: var(--bg-secondary);
      border-color: var(--border-color);
      color: var(--text-primary);
      box-shadow: 0 4px 16px var(--shadow);
    }

    /* 导入按钮样式 */
    .data-nav-item.import {
      background: var(--bg-secondary);
      border-color: var(--border-color);
      color: var(--text-primary);
    }

    .data-nav-item.import:hover {
      background: var(--bg-secondary);
      border-color: var(--border-color);
      color: var(--text-primary);
      box-shadow: 0 4px 16px var(--shadow);
    }

    @media (max-width: 1024px) {
      .quick-nav,
      .data-nav {
        display: none;
      }
    }

    /* 自定义确认对话框 */
    .modal-overlay {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      bottom: 0;
      background: rgba(0, 0, 0, 0.5);
      display: flex;
      align-items: center;
      justify-content: center;
      z-index: 10000;
      opacity: 0;
      visibility: hidden;
      transition: all 0.3s ease;
    }

    .modal-overlay.show {
      opacity: 1;
      visibility: visible;
    }

    .modal {
      background: var(--bg-secondary);
      border-radius: 12px;
      padding: 32px;
      max-width: 480px;
      width: 90%;
      box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
      transform: scale(0.9);
      transition: transform 0.3s ease;
    }

    .modal-overlay.show .modal {
      transform: scale(1);
    }

    .modal-icon {
      font-size: 48px;
      text-align: center;
      margin-bottom: 16px;
    }

    .modal-title {
      font-size: 20px;
      font-weight: 600;
      color: var(--text-primary);
      text-align: center;
      margin: 0 0 12px 0;
    }

    .modal-message {
      font-size: 14px;
      color: var(--text-secondary);
      text-align: center;
      margin: 0 0 24px 0;
      line-height: 1.6;
    }

    .modal-buttons {
      display: flex;
      gap: 12px;
      justify-content: center;
    }

    .modal-btn {
      padding: 10px 24px;
      border-radius: 8px;
      font-size: 15px;
      font-weight: 500;
      cursor: pointer;
      transition: all 0.2s ease;
      border: none;
      min-width: 100px;
    }

    .modal-btn-cancel {
      background: var(--bg-tertiary);
      color: var(--text-primary);
      border: 1px solid var(--border-color);
    }

    .modal-btn-cancel:hover {
      background: var(--border-color);
    }

    .modal-btn-confirm {
      background: var(--accent-red);
      color: white;
    }

    .modal-btn-confirm:hover {
      background: #d73027;
    }

    .theme-btn {
      width: 36px;
      height: 36px;
      border-radius: 8px;
      border: 2px solid var(--border-color);
      cursor: pointer;
      transition: all 0.2s ease;
      position: relative;
      display: flex;
      align-items: center;
      justify-content: center;
      overflow: hidden;
      pointer-events: auto;
      background: none; /* 移除button默认背景 */
      padding: 0; /* 移除button默认内边距 */
      outline: none; /* 移除button默认轮廓 */
      -webkit-appearance: none; /* 移除webkit默认样式 */
      -moz-appearance: none; /* 移除moz默认样式 */
    }

    .theme-btn:hover {
      transform: scale(1.1);
    }

    .theme-btn.active {
      border-color: var(--accent-blue);
      box-shadow: 0 0 0 3px var(--input-focus);
    }

    .theme-btn .tooltip {
      display: none;
    }

    /* 语言切换按钮样式 */
    .language-selector {
      position: fixed;
      top: 74px; /* 放在主题切换器下方 */
      right: 20px;
      display: flex;
      gap: 8px;
      background: var(--bg-secondary);
      padding: 8px;
      border-radius: 12px;
      box-shadow: 0 4px 20px var(--shadow);
      z-index: 9999;
    }

    .lang-btn {
      padding: 6px 12px;
      border-radius: 6px;
      border: 1px solid var(--border-color);
      background: var(--bg-secondary);
      color: var(--text-primary);
      font-size: 13px;
      font-weight: 500;
      cursor: pointer;
      transition: all 0.2s ease;
      white-space: nowrap;
    }

    .lang-btn:hover {
      background: var(--accent-blue);
      color: white;
      border-color: var(--accent-blue);
    }

    .lang-btn.active {
      background: var(--accent-blue);
      color: white;
      border-color: var(--accent-blue);
      box-shadow: 0 0 0 3px var(--input-focus);
    }

    @media (max-width: 640px) {
      .language-selector {
        top: 60px;
        right: 10px;
        transform: scale(0.9);
      }
    }

    /* 主题颜色预览 */
    .theme-btn .preview {
      width: 100%;
      height: 100%;
      transition: background 0.3s ease;
    }

    .theme-light .preview {
      background: linear-gradient(135deg, #f5f5f7 0%, #ffffff 100%);
    }

    .theme-eye-care .preview {
      background: linear-gradient(135deg, #f4f1e8 0%, #fffaf3 100%);
    }

    .theme-dark .preview {
      background: linear-gradient(135deg, #1c1c1e 0%, #2c2c2e 100%);
    }

    .theme-high-contrast .preview {
      background: linear-gradient(135deg, #ffffff 0%, #f0f0f0 100%);
    }

    .container {
      max-width: 680px;
      margin: 100px auto 60px;
      background: var(--bg-secondary);
      border-radius: 16px;
      padding: 48px;
      box-shadow:
        0 1px 3px rgba(0, 0, 0, 0.1),
        0 10px 20px rgba(0, 0, 0, 0.05);
      transition: background-color 0.3s ease;
    }

    h2 {
      text-align: center;
      margin: 0 0 48px 0;
      font-size: 32px;
      font-weight: 700;
      letter-spacing: -0.02em;
      background: linear-gradient(135deg, #2563eb 0%, #7c3aed 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }

    .form-section {
      margin-bottom: 24px;
    }

    /* 搜索区域样式 */
    #section-search {
      border-radius: 16px;
      padding: 24px;
      margin-bottom: 24px;
      background: var(--bg-secondary);
      box-shadow:
        0 1px 3px rgba(0, 0, 0, 0.1),
        0 10px 20px rgba(0, 0, 0, 0.05);
      border: 1px solid rgba(0, 0, 0, 0.05);
    }

    .row {
      display: grid;
      grid-template-columns: 24px 28px 0.9fr 80px 44px 44px;
      gap: 12px;
      align-items: center;
      padding: 8px 16px 16px;
      background: var(--bg-secondary);
      border-radius: 12px;
      border: 1px solid var(--border-light);
      transition: all 0.3s ease;
      margin-bottom: 12px;
      box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
    }

    .row:hover {
      box-shadow: 0 4px 12px rgba(37, 99, 235, 0.1);
      transform: translateY(-1px);
    }

    .row.dragging {
      opacity: 0.5;
    }

    .drag-handle {
      cursor: grab;
      color: var(--text-secondary);
      font-size: 18px;
      user-select: none;
      display: flex;
      align-items: center;
      justify-content: center;
      width: 24px;
      height: 24px;
    }

    .drag-handle:active {
      cursor: grabbing;
    }

    .row:hover .drag-handle {
      color: var(--text-primary);
    }


    input[type="text"], input[type="number"] {
      border: 2px solid #e2e8f0;
      border-radius: 10px;
      padding: 12px 16px;
      font-size: 16px;
      font-weight: 400;
      width: 100%;
      height: 48px;
      line-height: 24px;
      box-sizing: border-box;
      background: var(--input-bg);
      transition: all 0.3s ease;
      color: var(--text-primary);
      display: block;
    }

    input[type="text"]:hover, input[type="number"]:hover {
      border-color: #cbd5e1;
    }

    input[type="text"]:focus, input[type="number"]:focus,
    input[type="text"]:focus:hover, input[type="number"]:focus:hover {
      outline: none;
      border-color: #2563eb;
      box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.1);
    }

    /* 确保两个输入框完全一致 */
    .model-input {
      border: 2px solid #e2e8f0 !important;
      border-radius: 10px !important;
      padding: 8px 12px !important;
      font-size: 13px !important;
      font-weight: 400 !important;
      width: 100% !important;
      height: 38px !important;
      line-height: 22px !important;
      box-sizing: border-box !important;
      background: var(--input-bg) !important;
      color: var(--text-primary) !important;
      margin: 0 !important;
      display: block !important;
    }

    .model-input:hover {
      border-color: #cbd5e1 !important;
    }

    .model-input:focus {
      outline: none !important;
      border-color: #2563eb !important;
      box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.1) !important;
    }

    .model-input:focus:hover {
      border-color: #2563eb !important;
      box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.1) !important;
    }

    /* 移除number输入框的默认样式 */
    .model-input[type="number"] {
      /* 保持原生number input的上下按钮 */
    }

    input[type="text"]::placeholder {
      color: var(--text-secondary);
    }

    .btn {
      padding: 10px 24px;
      border-radius: 8px;
      font-size: 15px;
      font-weight: 500;
      cursor: pointer;
      transition: all 0.2s ease;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      border: none;
    }

    .btn-primary {
      background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
      color: white;
      border: none;
      box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
    }

    .btn-primary:hover {
      background: linear-gradient(135deg, #1d4ed8 0%, #1e40af 100%);
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(37, 99, 235, 0.4);
    }

    .btn-primary:active {
      background: linear-gradient(135deg, #1e40af 0%, #1e3a8a 100%);
      transform: translateY(0);
      box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
    }

    .btn-secondary {
      background: var(--text-primary);
      color: var(--bg-primary);
    }

    .btn-secondary:hover {
      background: var(--text-secondary);
    }

    .btn-secondary:active {
      background: var(--text-tertiary);
    }

    .btn-danger {
      background: transparent;
      color: var(--accent-red);
      width: 44px;
      height: 44px;
      padding: 0;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 18px;
      margin-top: -3px;
    }

    .btn-danger:hover {
      background: rgba(255, 59, 48, 0.1);
    }

    .btn-success {
      background: transparent;
      color: var(--accent-blue);
      width: 44px;
      height: 44px;
      padding: 0;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 18px;
      margin-top: -3px;
    }

    .btn-success:hover {
      background: rgba(37, 99, 235, 0.1);
    }

    .btn-preview {
      background: transparent;
      color: var(--text-secondary);
      width: 28px;
      height: 28px;
      padding: 0;
      border: none;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 14px;
      flex-shrink: 0;
      opacity: 0.5;
      transition: opacity 0.2s ease;
      cursor: pointer;
      margin-top: 5px;
    }

    .btn-preview:hover {
      opacity: 1;
      color: var(--text-primary);
    }

    .btn-preview i {
      font-size: inherit;
    }


    .model-input-wrapper,
    .qty-input-wrapper {
      width: 100%;
      display: flex;
      flex-direction: column;
      align-items: stretch;
    }

    .model-name-display,
    .qty-label-display {
      font-size: 12px;
      color: var(--text-secondary);
      padding: 0 2px 0 2px;
      white-space: normal;
      overflow: hidden;
      height: 16px;
      line-height: 16px;
      display: -webkit-box;
      -webkit-line-clamp: 1;
      -webkit-box-orient: vertical;
    }

    .model-input-wrapper .model-input,
    .qty-input-wrapper .model-input {
      width: 100%;
      min-width: 60px;
      height: 38px;
      box-sizing: border-box;
    }

    .btn-series {
      background: var(--btn-series-bg);
      color: var(--text-primary);
      border: 1px solid var(--border-color);
      border-radius: 6px;
      font-size: 13px;
      font-weight: 500;
      cursor: pointer;
      transition: all 0.2s ease;
      box-shadow: 0 1px 3px var(--shadow);
      text-align: center;
      display: flex;
      align-items: center;
      justify-content: center;
      height: 36px;
      line-height: 1;
    }

    .btn-series:hover {
      background: var(--accent-blue);
      color: white;
      border-color: var(--accent-blue);
      box-shadow: 0 2px 8px var(--shadow-blue);
    }

    .btn-series:active {
      transform: translateY(1px);
      box-shadow: 0 1px 3px var(--shadow);
    }

    /* 拖拽排序样式 */
    .sortable-ghost {
      opacity: 0.5;
      background: var(--accent-blue) !important;
      color: white !important;
    }

    .sortable-chosen {
      cursor: grabbing;
    }

    .sortable-drag {
      cursor: grabbing;
      opacity: 0.8;
    }

    .btn-category {
      padding: 8px 16px;
      border: 1px solid var(--border-color);
      background: var(--btn-series-bg);
      color: var(--text-primary);
      border-radius: 6px;
      font-size: 14px;
      font-weight: 500;
      cursor: pointer;
      transition: all 0.2s ease;
    }

    .btn-category:hover {
      background: var(--accent-blue);
      color: white;
      border-color: var(--accent-blue);
      box-shadow: 0 2px 8px var(--shadow-blue);
    }

    .btn-category.active {
      background: var(--accent-blue);
      color: white;
      border-color: var(--accent-blue);
      box-shadow: 0 2px 8px var(--shadow-blue);
    }

    .btn-category:active {
      transform: translateY(1px);
      box-shadow: 0 1px 3px var(--shadow);
    }

    #seriesButtons {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
      gap: 8px;
    }

    /* 系列详情展开区域 */
    .series-detail {
      margin-top: 16px;
      padding: 16px;
      background: var(--bg-secondary);
      border-radius: 8px;
      border: 1px solid var(--border-light);
      animation: slideDown 0.3s ease;
    }

    @keyframes slideDown {
      from {
        opacity: 0;
        transform: translateY(-10px);
      }
      to {
        opacity: 1;
        transform: translateY(0);
      }
    }

    .series-detail h4 {
      margin: 0 0 12px 0;
      font-size: 14px;
      color: var(--text-primary);
      font-weight: 600;
    }

    .model-list {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
      gap: 10px;
    }

    .model-item {
      position: relative;
      display: block;
    }

    .model-btn {
      padding: 10px 16px;
      border: 1px solid var(--border-color);
      background: var(--btn-series-bg);
      color: var(--text-primary);
      border-radius: 6px;
      font-size: 13px;
      cursor: pointer;
      transition: all 0.2s ease;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 8px;
      width: 100%;
      box-sizing: border-box;
      text-align: center;
      white-space: nowrap;
      overflow: hidden;
    }

    .model-item {
      position: relative;
    }

    .model-btn:hover {
      border-color: var(--accent-blue);
      background: var(--bg-tertiary);
    }

    .model-btn.selected {
      background: var(--accent-blue);
      color: white;
      border-color: var(--accent-blue);
      box-shadow: 0 2px 8px var(--shadow-blue);
    }

    .all-btn {
      padding: 8px 12px;
      border: 1px solid var(--accent-blue);
      background: transparent;
      color: var(--accent-blue);
      border-radius: 6px;
      font-size: 12px;
      cursor: pointer;
      transition: all 0.2s ease;
      font-weight: 600;
      width: 100%;
      box-sizing: border-box;
      text-align: center;
      display: block;
    }

    .all-btn:hover {
      background: var(--accent-blue);
      color: white;
    }

    .all-btn.selected {
      background: var(--accent-blue);
      color: white;
    }

    .all-btn.selected:hover {
      background: var(--accent-red);
      border-color: var(--accent-red);
    }

    .btn-pagination:hover:not(:disabled) {
      background: var(--pagination-hover);
      border-color: var(--text-secondary);
    }

    .btn-delete-all:hover {
      background: var(--accent-red);
      color: white;
      transform: translateY(-1px);
      box-shadow: 0 4px 12px rgba(255, 59, 48, 0.3);
    }

    .btn-delete-all:active {
      transform: translateY(0);
      box-shadow: 0 2px 6px rgba(255, 59, 48, 0.2);
    }

    .row-controls {
      display: flex;
      gap: 8px;
    }

    .btn-group {
      display: flex;
      gap: 16px;
      justify-content: center;
      margin-top: 40px;
      flex-wrap: wrap;
    }

    .series-section,
    .form-section {
      background: var(--bg-tertiary);
      border-radius: 16px;
      border: 1px solid rgba(0, 0, 0, 0.05);
      box-shadow:
        0 1px 3px rgba(0, 0, 0, 0.1),
        0 10px 20px rgba(0, 0, 0, 0.05);
    }

    .series-section h3,
    .form-section h3 {
      color: var(--text-primary);
    }

    .summary {
      background: var(--bg-tertiary);
      border-radius: 16px;
      padding: 24px;
      margin: 24px 0;
      border: 1px solid rgba(0, 0, 0, 0.05);
      box-shadow:
        0 1px 3px rgba(0, 0, 0, 0.1),
        0 10px 20px rgba(0, 0, 0, 0.05);
    }

    .summary h3 {
      margin: 0 0 12px 0;
      color: var(--text-primary);
      font-size: 16px;
      font-weight: 600;
    }

    .summary p {
      margin: 0;
      color: var(--text-tertiary);
      font-size: 14px;
      line-height: 1.6;
    }

    .loading {
      display: none;
      text-align: center;
      margin: 24px 0;
    }

    .spinner {
      border: 2px solid var(--border-light);
      border-top: 2px solid var(--accent-blue);
      border-radius: 50%;
      width: 28px;
      height: 28px;
      animation: spin 1s linear infinite;
      margin: 0 auto 12px;
    }

    @keyframes spin {
      0% { transform: rotate(0deg); }
      100% { transform: rotate(360deg); }
    }

    .spin-icon {
      display: inline-block;
      animation: spin 1s linear infinite;
    }

    .loading p {
      color: var(--text-secondary);
      font-size: 14px;
      margin: 0;
    }

    .success-message {
      display: none;
      background: linear-gradient(135deg, #f0fdf4 0%, #dcfce7 100%);
      color: var(--text-primary);
      padding: 20px 24px;
      border-radius: 12px;
      margin-top: 24px;
      font-size: 14px;
      line-height: 1.6;
      border: 1px solid rgba(16, 185, 129, 0.2);
      box-shadow: 0 1px 3px rgba(16, 185, 129, 0.1);
    }

    .error-message {
      background: linear-gradient(135deg, #fef2f2 0%, #fee2e2 100%);
      color: var(--accent-red);
      padding: 20px 24px;
      border-radius: 12px;
      margin-top: 24px;
      display: none;
      font-size: 14px;
      line-height: 1.6;
      border: 1px solid rgba(239, 68, 68, 0.2);
      box-shadow: 0 1px 3px rgba(239, 68, 68, 0.1);
    }

    @media (max-width: 640px) {
      body {
        padding: 0;
      }

      .container {
        margin: 40px 16px;
        padding: 28px 20px;
      }

      h2 {
        font-size: 28px;
        margin-bottom: 36px;
      }

      .series-section,
      .form-section {
        padding: 20px;
      }

      .series-section > div:nth-child(2) > div:first-child {
        flex-direction: column;
      }

      .series-section > div:nth-child(2) > div:first-child input {
        width: 100%;
      }

      #categoryFilter {
        width: 100%;
        flex-wrap: wrap;
      }

      #categoryFilter .btn-category {
        flex: 1;
        min-width: 80px;
      }

      .theme-selector {
        top: 10px;
        right: 10px;
        transform: scale(0.9);
      }

      #categoryFilter {
        gap: 6px;
      }

      #categoryFilter .btn-category {
        padding: 6px 12px;
        font-size: 12px;
      }

      .row {
        grid-template-columns: 24px 28px 0.9fr 70px 36px 36px;
        gap: 10px;
        padding: 12px;
        margin-bottom: 10px;
      }

      .btn-success,
      .btn-danger {
        width: 36px;
        height: 36px;
        font-size: 16px;
        margin-top: 1px;
      }

      .btn-preview {
        margin-top: 5px;
      }

      .drag-handle {
        margin-top: 7px;
      }

      .model-list {
        grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
      }

      .modal {
        padding: 24px;
      }

      .modal-btn {
        padding: 8px 16px;
        font-size: 14px;
      }

      #seriesButtons {
        grid-template-columns: repeat(auto-fill, minmax(70px, 1fr));
        gap: 6px;
      }

      #seriesButtons .btn-series {
        height: 32px;
        font-size: 12px;
      }

      .row {
        grid-template-columns: 24px 28px 0.8fr 120px 44px;
        gap: 12px;
        margin-bottom: 10px;
      }

      .model-input-wrapper .model-input,
      .qty-input-wrapper .model-input {
        min-width: 80px;
      }

      .btn-success,
      .btn-danger {
        width: 44px;
        height: 44px;
        font-size: 18px;
        margin-top: -3px;
      }

      .btn-preview {
        margin-top: 5px;
      }

      .drag-handle {
        margin-top: 7px;
      }

      .btn-group {
        flex-direction: column;
        gap: 12px;
      }

      .btn {
        width: 100%;
        justify-content: center;
      }

      /* 在小屏幕上隐藏左侧固定预览区域 */
      #fixedPreviewArea {
        display: none !important;
      }
    }